TDH(Twinkle Diamond Hardware) is dedicated to the field of window and door hardware, where continuous technological innovation, consistent quality assurance, and durable product quality shape our outstanding brand image.

We have devoted considerable efforts to research and development as well as production. Through our persistent innovation and endeavors, our brand has attained numerous international quality certifications.

TDH always offers the highest quality service to each customer. We provide a 10-year quality guarantee for all our hardware products.

TDH mainly offers services for traditional North American Specification Windows and Doors Hardware.

TDH primarily targets the high-end market with high requirements for the quality of life.

Based on independent innovation and high quality, we strive for steady development and aim to create a world-class hardware brand by focusing on details and service.